doc: README.md detailed

Author: ABouveron

README.md

@@ -11,7 +11,7 @@ python main.py --fingerprint '198e9fe586114844f6a4eaca5069b41a7ed43fb5a2df84892b
 
 ## Normal config:  
 * Your fingerprint should be the hash of the serial number of your machine (you can execute the program to see it) computed with **SHA3_512** ([Online Converter](https://emn178.github.io/online-tools/sha3_512.html)).  
-* Replace the public key from [keygen.sh](keygen.sh) line 63 of `main.py`.
+* Replace the public key from [keygen.sh](keygen.sh) line 66 of `main.py`.
 * Get your machine file on [keygen.sh](keygen.sh) and put the raw license key in a new file named `license.lic`.  
 * Put your `machine.lic` & `license.lic` in the same folder as `main.py` and run:
 

main.py

@@ -60,7 +60,10 @@ def get_serial_number():
         serial_number = str(serial_number)
         hash_serial = hashlib.sha3_512(serial_number.encode())
         args.fingerprint = hash_serial.hexdigest()
-        args.public_key = '7757a98a8188c31ae7a21d76a865800bf77bcf3476f7abbbdf5bb6a4afbe9a23'
+
+        print("Replace \"PUBLIC_KEY\" line 66 with your public key (\"Ed25519 128-bit Verify Key\") available in https://app.keygen.sh/settings. Then comment lines 64 & 65 and run again.")
+        sys.exit(1)  # Comment this line to continue
+        args.public_key = 'PUBLIC_KEY'
 
     # Read the license key file
     try: